Diamond cut



FIG. 1 is a side view of the diamond cut design from a first side;

FIG. 2 is a bottom view of the diamond cut design;

FIG. 3 is a side view of the diamond cut design from a second side, wherein the second side is transverse to the first side; and,

FIG. 4 is a top view of the diamond cut design. 

An ornamental design for a diamond cut, as shown and described. 